PENGGANTIAN BUNGKIL KEDELAI DENGAN PRODUK GELATINISASI CAMPURAN JAGUNG GILING-UREA DALAM RANSUM TERHADAP METABOLISME NITROGEN KAMBING KACANG (Replacement of soybean meal with gelatinized corn-urea mix in ration on nitrogen metabolism of kacang goats)

The objective of this experiment was to evaluate replacement of soybean meal with corn mixed urea gelatinize product in concentrate as supplement of goats that supress nitrogen excretion and increase N metabolism. Sixteen Kacang goats (12.839±0.49 kg of live weight) were used in Completely randomized design with four treatments and four replication. The animals were randomly allocated to receive one of the following experiment diets Gliricidia + concentrate with ratio of soybean meal and product of gelatinize mixed corn-urea that: 1) 100:0 (P0), 2) 75:25 (P1), 3) 50:50 (P2) and 4) 25:75 (P3). Ration were formulated to contain 12% CP with ratio 60 % gliricidia and 40% concentrates. The result showed that total dry matter intake was significantly influenced of treatments and average of DMI each treatment was, P2 (467.99±2.19 g/h/d), P1 (441.20±2.10 g/h/d), P0 (440.08±2.29 g/h/d) and P3 (430.43±6.11 g/h/d). Dry matter and crude protein digestibility from each treatment was, P2 (76.45±0.39% and 80.63±0.37%), P1 (67.85±0.24% and 70.10±0.18%), P0 (67.85±0.74% and 70.68±0.42%) and P3 (60.62±0.41% and 61.96±0.69%). Treatment P2 highest than other treatments. Nitrogen retention and biological value significantly influenced of the treatment. Excretion of feces and urine lowest at P2  than P1, P0 and P3. N consumption, Total N Excretion and N digested not significantly influenced of the treatment but P2 better of other treatment. It could be concluded that 50% replacement soybean meal by product gelatinize of mixed corn-urea in concentrate has positive effects on nitrogen metabolism of Kacang goats

KOMBINASI DAUN GAMAL (Gliricidia sepium) DAN DAUN PAPAYA (Carica papaya) DALAM RANSUM TERNAK KAMBING KACANG (Combination of gamal (Gliricidia sepium) and papaya (Carica papaya) leaves in ration supplement of kacang goat)

This study examined the effect of the use of gliricidia leaves and papaya leaves in rations on the growth of kacang goats. The male Kacang goat, growth age (1 - 1.5 years) as many as 12 tails with an initial body weight of 13.55 ± 0.036 kg (BW ± standard error) were used as experimental animals. The experimental design used is a complete randomized design of factorial patterns 2 x 2 with two factors, namely, gliricidia leaf factor (A) with two levels of giving (a1 15% and a2 30%), papaya leaf factor (B) with two levels of giving (b1 5% and b2 10%) so that 4 treatment combinations are formed. The combination of treatments is, a1b1, a1b2, a2b1 and a2b2. The treatment was repeated 3 times to form 12 experimental units. The parameters tested were the consumption and digesting of dry matter as well as ration nutrients, weight gain and efficiency of ration use. The data was analyzed using analysis of variance (ANOVA) and followed by the Duncan test to compare between treatments. The results showed that there was no significant interaction (P >0.05) on all the parameters measured. The response of goat to parameters is more influenced by the single effect of gliricidia leaves and papaya leaves. The response to the use of gliricidia leaves is 30% and papaya leaves are 10% higher than the level of use below. It was concluded that the use of gliricidia leaves and papaya leaves can increase goat growth but the combination has not provided a significant interaction for it requires further study with a combination of higher levels

Preferences for Modeling Scenarios and Parameters: The Perspective of Planners and Emergency Managers (Risk Communication and Public Engagement in Sea Level Rise Resilience Research Series, Paper No. 1)

The purpose of this study is to better inform research and practice in flood modeling by obtaining input from key end users on preferences for modeling approaches and model parameters, usability of flood models, and how information from flood models fit into decision making processes. We conducted a survey of stakeholders and end-users in the planning arena to identify their preferences for flood modeling scenarios and parameters. We also conducted a focus group with local emergency managers to understand how they would use predictive flood modeling for emergency management and planning

Ionizing beam-induced adhesion enhancement and interface chemistry for Au-GaAs

MeV ion beam-induced adhesion enhancement of Au-films (∼500 Å thick) on p-type and n-type GaAs substrates has been studied by the scratch test, ESCA, and nuclear reaction hydrogen profiling. For films resistively deposited in a diffusion pumped chamber at 2−5×10^(−6)torr, the data indicate that the adhesion enhancement is associated with oxide layers on the substrate surface adsorbed before the film deposition. The ESCA data suggest that water vapour dissociates and forms Ga(OH)_3 at the interface layers under ionizing radiation. The oxide concentration at the interface varies with substrate electronic properties and gives a large difference in the adhesion enhancement. However, the data obtained so far on the hydrogen concentration at the interface indicate that within our range of sensitivity it is about the same for substrates with different electronic properties. Our data demonstrate the importance of a thin absorbed (impurity) layer for the interface chemistry and adhesion enhancement by ionizing radiation

X-ray Fluorescence Analysis of Feldspars and Silicate Glass: Effects of Melting Time on Fused Bead Consistency and Volatilisation

Reproducible preparation of lithium tetraborate fused beads for XRF analysis of glass and mineral samples is of paramount importance for analytical repeatability. However, as with all glass melting processes, losses due to volatilisation must be taken into account and their effects are not negligible. Here the effects of fused bead melting time have been studied for four Certified Reference Materials (CRM’s: three feldspars, one silicate glass), in terms of their effects on analytical variability and volatilisation losses arising from fused bead preparation. At melting temperatures of 1065 °C, and for feldspar samples, fused bead melting times shorter than approximately 25 min generally gave rise to a greater deviation of the XRF-analysed composition from the certified composition. This variation might be due to incomplete fusion and/or fused bead inhomogeneity but further research is needed. In contrast, the shortest fused bead melting time for the silicate glass CRM gave an XRF-analysed composition closer to the certified values than longer melting times. This may suggest a faster rate of glass-in-glass dissolution and homogenization during fused bead preparation. For all samples, longer melting times gave rise to greater volatilisation losses (including sulphates and halides) during fusion. This was demonstrated by a linear relationship between SO3 mass loss and time1/2, as predicted by a simple diffusion-based model. Iodine volatilisation displays a more complex relationship, suggestive of diffusion plus additional mechanisms. This conclusion may have implications for vitrification of iodine-bearing radioactive wastes. Our research demonstrates that the nature of the sample material impacts on the most appropriate fusion times. For feldspars no less than ~25 min and no more than ~60 min of fusion at 1065 °C, using Li2B4O7 as the fusion medium and in the context of feldspar samples and the automatic fusion equipment used here, strikes an acceptable (albeit non-ideal) balance between the competing factors of fused bead quality, analytical consistency and mitigating volatilisation losses. Conversely, for the silicate glass sample, shorter fusion times of less than ~30 min under the same conditions provided more accurate analyses whilst limiting volatile losses

Metagenomic and metatranscriptomic analyses reveal activity and hosts of antibiotic resistance genes in activated sludge

This is the author accepted manuscript.Wastewater treatment plants (WWTPs) are a source and reservoir for subsequent spread of various antibiotic resistance genes (ARGs). However, little is known about the activity and hosts of ARGs in WWTPs. Here, we utilized both metagenomic and metatranscriptomic approaches to comprehensively reveal the diversity, abundance, expression and hosts of ARGs in activated sludge (AS) from three conventional WWTPs in Taiwan. Based on deep sequencing data and a custom-made ARG database, a total of 360 ARGs associated with 24 classes of antibiotics were identified from the three AS metagenomes, with an abundance range of 7.06 × 10−1–1.20 × 10−4 copies of ARG/copy of 16S rRNA gene. Differential coverage binning analysis revealed that >22 bacterial phyla were the putative hosts of the identified ARGs. Surprisingly, genus Mycobacterium and family Burkholderiaceae were observed as multi-drug resistant harboring 14 and 50 ARGs. Metatranscriptome analysis showed 65.8% of the identified ARGs were being expressed, highlighting that ARGs were not only present, but also transcriptionally active in AS. Remarkably, 110 identified ARGs were annotated as plasmid-associated and displayed a close to two-fold increased likelihood of being transcriptionally expressed compared to those ARGs found exclusively within bacterial chromosomes. Further analysis showed the transcript abundance of aminoglycoside, sulfonamide, and tetracycline resistance genes was mainly contributed by plasmid-borne ARGs. Our approach allowed us to specifically link ARGs to their transcripts and genetic context, providing a comprehensive insight into the prevalence, expression and hosts of ARGs in AS. Overall, results of this study enhance our understanding of the distribution and dissemination of ARGs in WWTPs, which benefits environmental risk assessment and management of ARB and ARGsEuropean Union's Horizon 202

Benchmark problems for robust control design

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/76996/1/AIAA-20949-475.pd

Multi-Disciplinary Project-Based Paradigm That Uses Hands-On Desktop Learning Modules and modern Learning Pedagogies

It has been established that traditional lectures ARE NOT best for student learning – yet that is what the community almost universally does! Furthermore, engineers work in broad multidisciplinary teams while classroom learning is individual and narrow. Yet, educators rarely invest the time and resources necessary to employ such innovations. In this CCLI type II award we are further refining Desktop Learning Modules (DLMs) within a Cooperative, Hands-on, Active, Problem based, Learning (CHAPL) setting for Chemical, Civil, Mechanical, Bio- and Electrical Engineering courses at a diverse set of institutions, including a community college engaged through a distance learning mode. A workbook is being developed and tested for easier adoption of the hands-on units and accompanying pedagogy. Existing concept inventories are not always showing significant gains in apparent student learning either for control or experimental groups and we are concluding these assessments are not well aligned with the macroscale design calculations being emphasized in the course. Therefore, new concept question assessments are being developed consisting of some macroscale questions from past inventories along with conceptual essay and calculation based questions aligned more specifically with the DLM processes at hand. Past implementations like this show students learn key concepts at least as well from each other in a guided inquiry as they do from lecture. Also, a mixed qualitative / quantitative assessment using a critical reasoning rubric reveals student abilities become better aligned with what is expected of graduating engineers ready for industry and that the CHAPL/DLM environment serves to reinforce understanding of physical phenomena, and to develop analytical and evaluative problem-solving skills. Interviews, surveys and team reports reveal students are better able to visualize concepts and that classroom exercises are promoting team skills and academic rigor. Faculty interviews reveal enhanced awareness of student misconceptions and improved monitoring of student growth in conceptual understanding and interpersonal skills. The poster and paper will highlight our findings and illustrate the CHAPL environment. Hands-on DLMs with cartridges used in teaching principles in the various disciplines will be demonstrated. A survey will be offered to those viewing the poster to assess potential interest in adoption of the DLMs and in participating in a follow-on NSF Type III proposal for Transforming Undergraduate Engineering Education through use of the DLMs and associated CHAPL pedagogies